I can't take Cogentin because I had a bad reaction to it but I can take Artane but I choose not to take it because it constipates me. But when I was taking it my legs felt so relaxed. It was amazing! I didn't realize how stiff my legs were until I took Artane but sadly I didn't stay on it long enough to find out if it would have helped ease up the muscle stiffness in my jaw to make it easier to speak and eat.